Is there a limit to how many games that can be made on one ip?
For example if someone was to walk clone D on ip 126

Does the amount of players than can land on 126 stop at some point to where its impossible to land on 126?

I don't believe there is a limit.

Pretty sure there is a limit, however it's never been met (something in the tens-of thousands)

you can only have 4 clients running on one external ip address

hope that clears it up for you